Mining Engineering > GATE 2021 > Statistics
In order to check whether iron ore is supplied to the specification of 62% Fe, a steel company has conducted a hypothesis test with the null hypothesis as Ho: μFe=62% and alternative hypothesis Ha: μFe<62%. A random sample of 5 observations reveal the following grade values of the lot, 58%, 56%, 60%, 64%, 62%. The t-test statistic for the hypothesis is
Correct : c
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